CN102857047A - Manufacturing method of shell of motor stator - Google Patents
Manufacturing method of shell of motor stator Download PDFInfo
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- CN102857047A CN102857047A CN201210286287XA CN201210286287A CN102857047A CN 102857047 A CN102857047 A CN 102857047A CN 201210286287X A CN201210286287X A CN 201210286287XA CN 201210286287 A CN201210286287 A CN 201210286287A CN 102857047 A CN102857047 A CN 102857047A
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- silicon steel
- steel sheet
- motor stator
- framework
- sheet assembly
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Abstract
The invention discloses a manufacturing method of a shell of a motor stator. The method comprises the steps of: a, overlying and fixing a plurality of silicon steel sheets as a silicon steel sheet assembly; b, carrying out injection moulding on the silicon steel sheets with plastic to form a silicon polar framework of the motor stator, wherein the silicon polar framework of the motor stator comprises a plastic circular framework and a plurality of silicon steel sheet assemblies, the plastic circular framework is an integral framework or formed by two or more than two arc-shaped frameworks, and the silicon steel sheet assemblies are arranged circumferentially along the plastic circular framework; each silicon steel sheet assembly is fixedly connected with the plastic circular framework, a plastic separation fence of the plastic circular framework is arranged between the adjacent silicon steel sheet assemblies, and the outer side of each silicon steel sheet assembly is at least partially exposed to the circumferential wall of the plastic circular framework; and c, placing the silicon framework of the motor stator into a shell module of the motor stator, and then carrying out injection moulding with the plastic to form the integral shell of the motor stator. According to the manufacturing method of the shell of the motor stator provided by the invention, the silicon steel sheet assemblies are accurately positioned, and the production cost is low.
Description
Technical field
The present invention relates to a kind of motor stator casing manufacture method that is immersed in the motor of working in the liquid.
Background technology
In the daily production of the mankind, life, there is a few thing in liquid, to finish.Therefore, the specific type of electric machine of working in liquid just has been born, and the characteristics of this motor are: the rotor of motor must be able to be immersed in the liquid and work, and the inner headed face of stator must seal, and can not infiltrate liquid.
This class specific type of electric machine, comprise rotor, stator case and stator coil, stator case is plastic injection-moulded forming, and rotor is installed in the stator case, and stator coil is sleeved on outside the stator case, has the silicon steel sheet assembly that is circumferentially arranged on the stator case, the inboard of silicon steel sheet assembly can not be exposed outside the stator case inwall, will cause the infiltration of whole motor stator in case expose, and so that motor scrap.Existing motor stator casing manufacture method is that a plurality of silicon steel sheet assemblies are embedded die for molding one by one, under the impact of pressure, notes speed, can make the silicon steel sheet assembly in mould, be positioned with deviation, both wings imbalance, easily cause the inner circle sealant became uneven phenomenon of stator case, easily cause the inboard of silicon steel sheet assembly to be exposed outside the inwall of stator case.For this reason, must thicken the inner circle sealant of stator case to guarantee sealing.Yet, owing to having thickeied the inner circle sealant of stator case, just make the inwall of silicon steel sheet assembly from stator case inwall hypertelorism, will affect stator and rotor and transmit magnetic field, cause motor performance bad.In order to guarantee the normal operation power of motor, the silicon steel sheet assembly that must use the silicon steel sheet of extraordinary high-grade (containing rare element) to make, so production cost is high.
Summary of the invention
The object of the present invention is to provide the accurate positioning of a kind of silicon steel sheet assembly, and the low motor stator casing manufacture method of production cost.
In order to achieve the above object, technical scheme of the present invention is: a kind of motor stator casing manufacture method may further comprise the steps: a, the stack of a plurality of silicon steel sheets is fixed into the silicon steel sheet assembly,
B, with a plurality of silicon steel sheet assemblies and injection molding, become motor stator silicon utmost point framework, described motor stator silicon utmost point framework comprises plastic annular framework and a plurality of silicon steel sheet assembly, the plastic annular framework is that a general frame or plastic annular framework are the bent frame formation more than 2 or 2, a plurality of silicon steel sheet assemblies are circumferentially arranged along the plastic annular framework, each silicon steel sheet assembly is fixedly connected with the plastic annular framework, the plastic barrier grid that the plastic annular framework is arranged between the adjacent silicon steel sheet assembly, the periphery wall of plastic annular framework is exposed in the outside of each silicon steel sheet assembly at least in part
C, with described motor stator silicon utmost point framework put into the motor stator casing mould then with injection molding, and the internal face of motor stator silicon utmost point framework is coated in the inner circle sealant of motor stator casing of moulding, forms the integrated motor stator case.
In the b step, the inboard of described each silicon steel sheet assembly all has an axial injection slot at least, axially is coated with at least in part the cover strip of plastic annular framework in the injection slot.
In the b step, described silicon steel sheet assembly has 3 ~ 24, and circumferentially is distributed on the plastic annular framework.
In the b step, described silicon steel sheet assembly has 9, and circumferentially is distributed on the plastic annular framework.
In the b step, described silicon steel sheet assembly has 9, and circumferentially is distributed on the plastic annular framework that is made of 3 bent frames.
After adopting said method, because with a plurality of silicon steel sheet assemblies and injection molding, become motor stator silicon utmost point framework, the plastic annular framework is that a general frame or plastic annular framework are the bent frame formation more than 2 or 2, a plurality of silicon steel sheet assemblies are circumferentially arranged along the plastic annular framework, each silicon steel sheet assembly is fixedly connected with the plastic annular framework, motor stator silicon utmost point framework directly positions the silicon steel sheet assembly, the both wings of silicon steel sheet assembly have been fixed, the accurate positioning of silicon steel sheet assembly, therefore, when the injection moulding motor stator casing, the silicon steel sheet assembly is put into the motor stator casing mould by changing in original one by one embedding motor stator casing mould with motor stator silicon utmost point framework, because the accurate positioning of silicon steel sheet assembly, therefore rate of finished products is higher, improved production efficiency; Again because the own accurately location of the silicon steel sheet assembly in the motor stator silicon utmost point framework, the both wings balance, therefore, the very thin and even thickness of stator case inner circle sealant after the injection mo(u)lding, thereby improved significantly the kinetic energy effect of stator to rotor, so the silicon steel sheet assembly of common silicon steel sheet production can reach instructions for use fully, owing to not adopting high-grade silicon steel sheet assembly, production cost obtains reduction by a relatively large margin.When producing motor stator casing, owing to having cancelled the process that embeds one by one the silicon steel sheet assembly, reduced the set-up time of inserts, greatly shortened whole injection molding cycle, so the high temperature stand-by period of housing raw material in production equipment also shortens dramatically, obviously improved the material degraded in process of production of housing raw material.
Description of drawings
Fig. 1 is the first example structure schematic diagram of the motor stator silicon utmost point framework 3 among the present invention;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is the A-A cutaway view of Fig. 1;
Fig. 4 is the B-B cutaway view of Fig. 2;
Fig. 5 is the second embodiment cutaway view of the motor stator silicon utmost point framework 3 among the present invention;
The structural representation of the motor stator casing 4 among Fig. 6 the present invention;
Fig. 7 is the C-C cutaway view of Fig. 6.
Embodiment
The present invention is further detailed explanation below in conjunction with embodiment that accompanying drawing provides.
Shown in Fig. 1,2,3,4,6,7, a kind of motor stator casing manufacture method may further comprise the steps: a, the stack of a plurality of silicon steel sheets is fixed into silicon steel sheet assembly 2,
B, by a plurality of silicon steel sheet assemblies 2 and injection molding, become motor stator silicon utmost point framework 3, described motor stator silicon utmost point framework 3 comprises plastic annular framework 1 and a plurality of silicon steel sheet assembly 2, plastic annular framework 1 is a general frame, a plurality of silicon steel sheet assemblies 2 are circumferentially arranged along plastic annular framework 1, each silicon steel sheet assembly 2 is fixedly connected with plastic annular framework 1, the plastic barrier grid 1-2 that plastic annular framework 1 is arranged between adjacent silicon steel sheet assembly 2, the periphery wall of plastic annular framework 1 is exposed in the outside of each silicon steel sheet assembly 2 at least in part
C, with described motor stator silicon utmost point framework 3 put into the motor stator casing mould then with injection molding, and the internal face of motor stator silicon utmost point framework 3 is coated in the inner circle sealant 4-1 of motor stator casing 4 of moulding, forms integrated motor stator case 4.
In the b step, the inboard of described each silicon steel sheet assembly 2 all has an axial injection slot 2-3 at least, axially is coated with at least in part the cover strip 1-3 of plastic annular framework 1 among the injection slot 2-3.
In the b step, described silicon steel sheet assembly 2 has 3 ~ 24, and circumferentially is distributed on the plastic annular framework 1.
In the b step, described silicon steel sheet assembly 2 has 9, and circumferentially is distributed on the plastic annular framework 1.
In the b step, described silicon steel sheet assembly 2 has 9, and circumferentially is distributed on the plastic annular framework 1 that is made of 3 bent frame 1-5.
As shown in Figure 1, the outside of described each silicon steel sheet assembly 2 all has two axial convex tendon 2-1, forms axial notch 2-2 between two axial convex tendon 2-1.
As shown in Figure 4, for when being injection molded into motor stator casing, better the thickness of control seal stator layer fixedly positioning silicon steel sheet assembly 2 and plastic annular framework 1, the inboard of described each silicon steel sheet assembly 2 all has an axial injection slot 2-3 at least, axially is coated with at least in part the cover strip 1-3 of annular frame 1 among the injection slot 2-3.
As shown in Figure 3, in order to make the location of the present invention when the motor stator casing injection moulding more accurate, the aperture of the inwall of described plastic annular framework 1 at least one end has chamfering 1-1.
As shown in Figure 5, the second embodiment for the motor stator silicon utmost point framework 3 among the present invention, described plastic annular framework 1 is made of the bent frame 1-5 more than 2 or 2, be preferably 3 bent frame 1-5, and have at least 2 silicon steel sheet assemblies 2 on each bent frame 1-5, be preferably 3 silicon steel sheet assemblies 2 on each bent frame 1-5.
Shown in Fig. 1,2,3,4,5, plastic annular framework in the motor stator silicon utmost point framework 31 adopts the PP material to make, or other plastic material such as PC, PA makes, and silicon steel sheet assembly 2 adopts common silicon steel sheet to be formed by stacking.The axial notch 2-2 of silicon steel sheet assembly 2 or axially convex tendon 2-1 be for the silicon steel sheet assembly load of stator coil, can play positioning action, also can transmit magnetic field.
Claims (5)
1. motor stator casing manufacture method may further comprise the steps: a, a plurality of silicon steel sheets stacks are fixed into silicon steel sheet assembly (2), it is characterized in that:
B, with a plurality of silicon steel sheet assemblies (2) and injection molding, become motor stator silicon utmost point framework (3), described motor stator silicon utmost point framework (3) comprises plastic annular framework (1) and a plurality of silicon steel sheet assembly (2), plastic annular framework (1) is that a general frame or plastic annular framework (1) are bent frame (1-5) formation more than 2 or 2, a plurality of silicon steel sheet assemblies (2) are circumferentially arranged along plastic annular framework (1), each silicon steel sheet assembly (2) is fixedly connected with plastic annular framework (1), the plastic barrier grid (1-2) that plastic annular framework (1) is arranged between the adjacent silicon steel sheet assembly (2), the periphery wall of plastic annular framework (1) is exposed in the outside of each silicon steel sheet assembly (2) at least in part
C, with described motor stator silicon utmost point framework (3) put into the motor stator casing mould then with injection molding, and the internal face of motor stator silicon utmost point framework (3) is coated in the inner circle sealant (4-1) of motor stator casing (4) of moulding, forms integrated motor stator case (4).
2. motor stator casing manufacture method according to claim 1, it is characterized in that: in the b step, the inboard of described each silicon steel sheet assembly (2) all has an axial injection slot (2-3) at least, axially is coated with at least in part the cover strip (1-3) of plastic annular framework (1) in the injection slot (2-3).
3. motor stator casing manufacture method according to claim 1, it is characterized in that: in the b step, described silicon steel sheet assembly (2) has 3 ~ 24, and circumferentially is distributed on the plastic annular framework (1).
4. motor stator casing manufacture method according to claim 1, it is characterized in that: in the b step, described silicon steel sheet assembly (2) has 9, and circumferentially is distributed on the plastic annular framework (1).
5. motor stator casing manufacture method according to claim 1, it is characterized in that: in the b step, described silicon steel sheet assembly (2) has 9, and circumferentially is distributed on the plastic annular framework (1) that is made of 3 bent frames (1-5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210286287.XA CN102857047B (en) | 2012-08-14 | 2012-08-14 | Manufacturing method of shell of motor stator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210286287.XA CN102857047B (en) | 2012-08-14 | 2012-08-14 | Manufacturing method of shell of motor stator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102857047A true CN102857047A (en) | 2013-01-02 |
| CN102857047B CN102857047B (en) | 2015-05-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210286287.XA Expired - Fee Related CN102857047B (en) | 2012-08-14 | 2012-08-14 | Manufacturing method of shell of motor stator |
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| Country | Link |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11581791B2 (en) | 2020-11-17 | 2023-02-14 | Garrett Transportation Inc | Method of manufacturing e-boosting device |
| US11689076B2 (en) | 2020-11-17 | 2023-06-27 | Garrett Transportation I Inc | Motor cooling system for e-boosting device |
| US11742717B2 (en) | 2020-11-17 | 2023-08-29 | Garrett Transportation I Inc | Motor cooling system for e-boosting device |
| US11913473B2 (en) | 2020-03-17 | 2024-02-27 | Garrett Transportation I Inc | Compressor with electric motor coolant jacket having radial and axial portions |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006352973A (en) * | 2005-06-14 | 2006-12-28 | Hitachi Appliances Inc | Motor and rotor therefor |
| US20080191579A1 (en) * | 2007-02-14 | 2008-08-14 | Luo Shen-Hua | Stator of motor and manufacturing method thereof |
| CN101764447A (en) * | 2009-11-27 | 2010-06-30 | 深圳创维－Rgb电子有限公司 | Flat DC motor |
| US20100237726A1 (en) * | 2009-03-23 | 2010-09-23 | Nisca Corporation | Stator structure and rotating electrical machine using the same |
| CN102244419A (en) * | 2011-07-13 | 2011-11-16 | 东莞市毅瑞得电机有限公司 | Motor stator convenient in winding and production method thereof |
-
2012
- 2012-08-14 CN CN201210286287.XA patent/CN102857047B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006352973A (en) * | 2005-06-14 | 2006-12-28 | Hitachi Appliances Inc | Motor and rotor therefor |
| US20080191579A1 (en) * | 2007-02-14 | 2008-08-14 | Luo Shen-Hua | Stator of motor and manufacturing method thereof |
| US20100237726A1 (en) * | 2009-03-23 | 2010-09-23 | Nisca Corporation | Stator structure and rotating electrical machine using the same |
| CN101764447A (en) * | 2009-11-27 | 2010-06-30 | 深圳创维－Rgb电子有限公司 | Flat DC motor |
| CN102244419A (en) * | 2011-07-13 | 2011-11-16 | 东莞市毅瑞得电机有限公司 | Motor stator convenient in winding and production method thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11913473B2 (en) | 2020-03-17 | 2024-02-27 | Garrett Transportation I Inc | Compressor with electric motor coolant jacket having radial and axial portions |
| US11581791B2 (en) | 2020-11-17 | 2023-02-14 | Garrett Transportation Inc | Method of manufacturing e-boosting device |
| US11689076B2 (en) | 2020-11-17 | 2023-06-27 | Garrett Transportation I Inc | Motor cooling system for e-boosting device |
| US11742717B2 (en) | 2020-11-17 | 2023-08-29 | Garrett Transportation I Inc | Motor cooling system for e-boosting device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102857047B (en) | 2015-05-20 |
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Granted publication date: 20150520 Termination date: 20210814 |